MELSEC-F series PLC built-in pulse output functions and positioning functions
FX3S, FX3G, FX3GC, FX3UC series positioning function (main unit: transistor output type)
- Low cost system can be realized without any special expansion devices dedicated for positioning.
- 1-speed positioning and repetitive positioning can be easily performed by the PLC alone.
- Dedicated positioning instructions are built-in. With the new batch setting positioning instruction (DTBL),
positioning can be executed just by specifying in the PLC program the number of a positioning operation set in GX Developer.
(FX3S: DTBL instruction is not supported) - 3 independent axes can output maximum 100 kHz pulse train from outputs Y000, Y001, Y002 (transistor output).
(FX3S and FX3G 14 pt/24 pt models and FX3GC have 2 independent axes)
Example system configuration
- *1FX3S and FX3G 14 pt/24 pt models and FX3GC have 2 independent axes.
Batch Data Positioning Mode (DTBL) instruction
| Instruction | Description |
|---|---|
| DVIT (FNC151)*2 | Interrupt Positioning |
| PLSV (FNC157) | Variable Speed Pulse Output |
| DRVI (FNC158) | Drive to Increment |
| DRVA (FNC159) | Drive to Absolute |
- *2only FX3U/FX3UC PLCs.
Specifications
| Items | Specifications |
|---|---|
| Pulse Output | Y000, Y001, Y002* of transistor output type main unit can each output maximum 100 kHz (3 independent axes, FX3S and FX3G 14 pt/24 pt models and FX3GC have 2 axes). Rotation direction signal output included |
| Output (Y000 to Y002*) | Transistor output: Open collector (use transitor output type main unit) Use voltage, current range: 5 to 24 V DC/10 to 100 mA |
| Programming languages | [Pulse output instructions: 2 types] Pulse output (PLSY), pulse output with acceleration deceleration (PLSR) |
- *FX3S and FX3G 14 pt/24 pt models and FX3GC have Y000 to Y001.